diff --git a/bin/pwait/pwait.c b/bin/pwait/pwait.c
index 26cf1bd8970..8d87a8d6d21 100644
--- a/bin/pwait/pwait.c
+++ b/bin/pwait/pwait.c
@@ -141,5 +141,6 @@ main(int argc, char *argv[])
 		nleft -= n;
 	}
 
+	free(e);
 	return 0;
 }